Basics Flashcards
(31 cards)
1
Q
Density=mass / volume
A
Kgm^-3
2
Q
Momentum= mass * velocity
A
Kgms^-1
3
Q
Force= mass * acceleration
A
Kgms^-2
4
Q
Pressure=force / area
A
Kgm^-1 s^-2
5
Q
Energy=force * distance
A
Kgm^2 s^-2
6
Q
Power = work / time
A
Kgm^2 s^-3
7
Q
Electric charge= charge * time
A
As
8
Q
Potential difference= energy / charge
A
Kgm^2 A^-1 s^-3
9
Q
Resistance =potential difference / current
A
Kgm^2 A^-2 s^-3
10
Q
Distance (v or s)
A
Scaler
11
Q
Displacement (v or s)
A
Vector
12
Q
Speed (v or s)
A
Scaler
13
Q
Velocity (v or s)
A
Vector
14
Q
Mass (v or s)
A
Scaler
15
Q
Weight (v or s)
A
Vector
16
Q
Pressure (v or s)
A
Scaler
17
Q
Force (v or s)
A
Vector
18
Q
Energy (v or s)
A
Scaler
19
Q
Momentum (v or s)
A
Vector
20
Q
Temp (v or s)
A
Scaler
21
Q
Acceleration (v or s)
A
Vector
22
Q
Volume (v or s)
A
Scaler
23
Q
Electric current (v or s)
A
Vector
24
Q
Density (v or s)
A
Scaler
25
Torque/moment (v or s)
Vector
26
Laminar flow
~layers move steady without mixing
27
Turbulent flow
~layers overlap
| ~Eddie currents
28
Stokes law
Viscous drag = 6 [pie] [mu] [r] [v]
Mu=viscosity of fluid
R=radius of sphere
V=velocity of the sphere relative to the fluid
29
What does stokes law assume
~It assumes that the fluid is uniform throughout and that the flow is laminar
~Therefore only travels at low speeds
~Small...
~Spherical object
30
Upthrust definition
The weight of fluid displaced
31
Upthrust equation
Volume * density
